Home / 86,612,037.75-129,916,935.79-21,033,712.80

Finding the Fourth Proportional to 86,612,037.75, 129,916,935.79 and 21,033,712.80

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Solution

The fourth proportional to 86,612,037.75, 129,916,935.79 and 21,033,712.80 is: 31,550,297.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,612,037.75 : 129,916,935.79 = 21,033,712.80 : x
  2. Step 2: Convert to fraction form
    86,612,037.75/129,916,935.79 = 21,033,712.80/x
  3. Step 3: Cross multiply
    86,612,037.75x = 129,916,935.79 × 21,033,712.80
  4. Step 4: Simplify right side
    86,612,037.75x = 2,732,635,515,210,317
  5. Step 5: Solve for x
    x = 2,732,635,515,210,317/86,612,037.75
  6. Step 6: Final answer
    x = 31,550,297.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.